搜索 - 科创

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如题，在重结晶硝酸钾时，我误将热的饱和硝酸钾溶液倒入了一个容器这个容器附有少量干燥的三氧化二铁，我曾经尝试清理，但没有成功，本来打算扔掉的及时倒出后发现，倒出的溶液呈淡红色沉淀一夜后，它仍然呈现红色，底部只有白色的硝酸钾结晶于是过滤

全玻蒸馏，三口烧瓶，四氟恒压滴液漏斗，加热套，聚四氟搅拌试剂准备方法一:浓硫酸，三氧化铬，异丙醇，无水氯化钙（较为推荐）利用硫酸三氧化铬溶液氧化异丙醇方法二:乙酸钠（产率低不推荐）方法三，异丙醇，高锰酸钾，

过二硫酸钾+少量浓硫酸（催化）放烧瓶中煮沸即可制取。。。2K2S2O8===(浓H2SO4，煮沸)===2K2SO4+2SO3↑+O2↑价格很便宜。。。过二硫酸钾15元（零售价）

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